Search for Tetraneutron by Pion Double Charge Exchange Reaction at J-PARC
Abstract
Tetraneutron (4n) has come back in the limelight, because of recent observation of a candidate resonant state at RIBF. We propose to investigate the pion double charge exchange (DCX) reaction, i.e., 4He(π-, π+), as an alternative way to populate tetraneutron. An intense π- beam with the kinetic energy of ∼850 MeV, much higher than that in past experiments at LAMPF and TRIUMF, will open up a possibility to improve the experimental sensitivity of the formation cross section, which will be much smaller than hitherto known DCX cross sections such as 9Be(π-, π+)9He (g.s.).
- Publication:
-
Proceedings of the 14th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2016
- Pub Date:
- 2017
- DOI:
- 10.7566/JPSCP.13.020058
- arXiv:
- arXiv:1609.00079
- Bibcode:
- 2017menu.confb0058F
- Keywords:
-
- Nuclear Experiment;
- Nuclear Theory
- E-Print:
- 4 pages, 1 figure